factory slant 6 rocker arm ratio?

[flight704]

Any body know for sure what the factory slant six rocker arm ratio is?

 

[RustyRatRod]

1.5 but they are very crappy.

 

[Hyper_pak]

Yea, what he said. I have heard 1.4 to 1.5. You should check your own to be sure. There are some aftermarket roller rocker arms, but they are not price friendly for a normal slant six build.

 

[RustyRatRod]

Bill Dedman, may he rest in peace had figured out how to modify slant six rocker arm ratios to 1.6 on the cheap. He made up a jig and cut and re welded them. Really innovative old dude. I really miss him.

 

[RustyRatRod]

Here is Bill's thread on it. He never got to run them, but my guess is he got it right.

New rockers...

 

[Hyper_pak]

Rusty, you have any pictures of one of the welded ones?

 

[Hyper_pak]

I got them!